Universal-Arduino-Telegram-Bot: Longpoll - non blocking version

My ESP will receive no more than 5 or 6 commands from Telegram in 24 hours, but in such a case, I need a fast response, action and notification.

I have some doubt about using Longpoll. Who can give me Pros & Cons on Longpoll? In addition, would Long poll in some way delay the execution of other commands in the loop?

I am asking this question because I have noticed that when I set longPoll = 60, my device does not answer anymore to OTA, due to a timeout.

bot.longPoll = 60;

void loop() {
 server.handleClient();
 ArduinoOTA.handle();
 timeClient.update();
 
 if (millis() > Bot_lasttime + Bot_mtbs)  {
   int numNewMessages = bot.getUpdates(bot.last_message_received + 1);
   while (numNewMessages) {
     handleNewMessages(numNewMessages);
     numNewMessages = bot.getUpdates(bot.last_message_received + 1);
   }
   Bot_lasttime = millis();
 }
}